Most of the shareholder ballots were cast in the weeks before Dimon revealed the trading loss.

His pay package passed with 91 percent of the vote. The vote to strip him of the chairman’s title won only 40 percent support. The bank did not announce separate results from before and after the loss was revealed.

Dimon was confronted at the meeting by shareholders upset about the trading loss, which has rattled investor confidence in the bank and complicated JPMorgan’s efforts to fight tougher regulation of Wall Street.

Rev. Seamus Finn, representing shareholders from the Catholic organization Missionary Oblates of Mary Immaculate, said that investors had heard Dimon apologize before for the foreclosure crisis and other problems.

“We heard the same refrain: We have learned from our mistakes. This will never be allowed to happen again,” Finn said. “I can’t help wondering if you are listening.”

Lisa Lindsley, director of capital strategies for an influential union of public employees that is also a major JPMorgan shareholder, said independent board leadership was in shareholders’ best interest.

“An all-powerful CEO is his own boss,” she said. “Looking for an infallible CEO is a fool’s errand.”

Investors have pummeled JPMorgan’s stock price since the loss was revealed. The stock lost 12 percent in two trading days and lost almost $20 billion in market value. It bounced back on Tuesday, rising 3 percent.

Dimon said he did not expect the trading loss to jeopardize JPMorgan’s quarterly stock dividend, which is 30 cents per share.

A law enforcement official said that the FBI’s New York office is heading an inquiry by the Justice Department into the JPMorgan loss. The official, who was not authorized to speak about the decision, spoke on condition of anonymity.

The official characterized the inquiry as preliminary.

There was a heavy police presence at the meeting, in an office park east of downtown Tampa. Protesters were there as well, including some who threw eggs at a poster with Dimon’s picture on it.

“We wanted to let Jamie Dimon know how we feel about what big banks have done to our economy,” said Marilyn Lyday, a member of the protest group Occupy Orlando.

Dimon got something of a vote of confidence from President Barack Obama, who appeared on ABC’s “The View” for an episode airing Tuesday. Obama used the appearance to press for tighter regulation of Wall Street.

“JPMorgan is one of the best-managed banks there is,” the president said. “Jamie Dimon, the head of it, is one of the smartest bankers we got, and they still lost $2 billion and counting.”

Obama said the bank was “making bets” in the market for the complex financial instruments known as derivatives. Dimon has said the bank was hedging against financial risk.

A part of the 2010 financial overhaul legislation known as the Volcker rule would restrict banks from some trading for their own profit. Dimon and critics of the industry have disagreed over whether JPMorgan’s trading would have violated that rule.